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Re: [Discuss-gnuradio] external clock

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] external clock
Date: Fri, 19 Aug 2005 10:59:15 -0700
User-agent: Mozilla Thunderbird 1.0.6-1.1.fc4 (X11/20050720)

> Meanwhile, I poked Matt for an updated delivery estimate on the USRP L
> and S band daughter cards the other day but haven't heard back from him
> yet.  Does anyone else (Eric?) know enough about the design of those to
> share the up/down conversion approach?  Is there another oscillator to
> tame, a PLL driven by a USRP reference clock, or what?  

The 400-500 MHz transceiver board will be available first.  The others
are taking longer than hoped.  I would estimate late October.

All the boards use the reference from the main crystal oscillator, so
everything is phase locked to that one reference.


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